An Ontario group that compiles reports of troubles with wind farms has claimed that wind power companies have spent $1.75 million to buy six homes in Dufferin County.  According to the report, these six families had found their homes unlivable after wind farms began operations, and all were required to sign gag orders as part of their buy-outs. Given the gag orders, hard information on the distances from each home to operating turbines is not fully available, but from limited personal communication with folks in the area, it appears that the homes ranged from 700m to 2.5km from the turbines (just under a half mile to just over 1.5 miles).

UPDATE 11/09: According to Canadian Hydro Developers, only two of the homes were purchased due to noise issues; the others, the company says, were purchased during construction for company personnel, and will be resold.  More on this in a recent article here.